Improvement in machines for cutting hoops



2 Sheets--Shet 1.

A. F. SKIDMOREQ Machines for Cutting Hoops. N0 155,5 95 Patented Oct. 6,1874.

WITNESS S J INVENTOR 2Sheets--Sheet2.

I 7 F. SKIDMORE.-

' Machines for Cutting Hoops. S N .155,595 Patented 0ct.6,1874.

WITNESSES I INVE TOR UNITED STATES PATENT Orr-Ion.

ABEL F. SKIDMORE, OF LITOHFIELD, MICHIGAN.

IMPROVEMENT IN MACHINES FOR CUTTINGHOO'PS.

Specification forming part of Letters Patent No. 155,595, dated October 6, 1874; application filed July 13, 1874.

To all whom it may concern.-

Be it known that I, ABEL F. SKIDMORE, of Litchfield, in the county of Hillsdale and State of Michigan, have invented certain Improvements in Machines for Cutting Hoops, 850., of which the following is a specification:

The nature of my invention relates to a machine for making hoops complete and ready for use at one operation of the machine, cutting thehoop of desirable length and thickness from the plank or lumber, and automatically beveling the ends of the same, as will be more fully hereinafter set forth. It consists in the construction of a shuttle which holds the knives which sever the hoop from the plank or timber, and also furnishes bearings for the oscillating beveling-knives, as will be shown hereafter.

In the accompanying drawings, which form a part of this specification, Figure 1 represents a front view or ,side elevation, showing my improved shuttle. Fig. 2 represents a longitudinal section through the line a: m, Fig. 1. Fig. 3 is a cross-section, taken through the line y y, Fig. 2. Fig. 4 is a view, showing the shuttle in detail; and Fig. 5 a top view, show- I ing the operating details. Fig. 6 is a perspective view of the guide.

Referring to the drawings,A represents the frame of the machine, made of any desirable form or material, the object of which is to form supports and bearings for the operating parts of the machine,,which will be hereinafter described. B is the shuttle, which is so constructed and adapted on its upper and lower sides that it will run smoothly and easily along by means of rollers or grooves, &c., a groove, M, being shown in this case. ltigidly attached to the body of this shuttle by any desired means is a two-edged knife, the office of which is to cut the hoop from the timber in both the forward and backward movement of the same. The sharpened surfaces of the knife are so inclined as to furnish a long cutting-edge, and is situated a suitable distance from the inner surface of the body of the shuttle B, so as to allow the severed hoop to pass between them. This knife is represented in the drawing by the letter O. D is an oscillating trimming or finishing knife, pivoted at the center and journaled in the shuttle B flush with the inner face of the same. It is held in this position by a spring, which bears equally on either end. This knife is adapted and intended to bevel the end of the hoop, as will be hereinafter described, and it is intended to place one on the other side of the knife 0 on the shuttle. E is the needle of the shuttle, (or an eye of a needle,) which is constructed and arranged to allow the severed hoop to pass out, and this willbe accomplished if the knife severs in either the forward or backward movement. F F are the feedingwheels, cogged or otherwise, which are operated by the power from above through the shafts f. G are the upright guides, provided with rollers g, which serve to allow the plank to be fed to the knives evenly and uniformly. I is the cutting-table, which is pivoted at its ends in the frame,.and is susceptible of movement, as is shown. In the upper part of the frame is a guide, T, against which the arms of the oscillating trimming-knifeoperate t0 bevel the end of the hoop, as will readily be seen. J is the pivot, on which the table is allowed to turn, so as to bevel the edges of the hoop. Above the frame are ratchetwheels K, which are operated by the ratchets R B, and, being rigidly attached to the shaft, they turn the feeding-wheels and feed the timber to the knives, as is obvious. N is an arm, which operates the elbows 0 O and arms Q Q.

It will readily be seen that the power, being applied to the arms Q Q through the connectin g-rods P N and elbows O, presses the springratchets R R downward, which turns the ratchet-wheel K until the holding-ratchets R, operated by the springs S, catch into the next ratchet-teeth. The arms Q Q then recede until the ratchets R engage with the next succeeding teeth of the wheel K.

The shuttle is operated by any well-known power-steam or otherwise-and the feeding mechanism by the operator through treadle or otherwise.

Ic1aim 3. The arm N, rod P, elbows 0, arms Q, 1. The shuttle 13, provided with knives G pawls R R, and springs SS S, in Combineand oscillating knives D, as shown andspecition with theratchet-wheels K and feed-roller fied. F, as shown and specified.

2. The knife D, operated by spring, as ABEL F. SKIDMORE.

shown, for beveling the ends of the hoops, Witnesses:

in combination with the .guide '1, :as -speci- 'GEO. G. 'SKIDMORE,

fied. F. H. DUFFY. 

